Harold Hamm, billionaire oilman, says the oil market is at a turning point, and he's taking important steps to get ready for the day when the U.S. will have to ramp up crude production.

Hamm, chairman and CEO of Continental Resources, appeared Thursday on CNBC's "Squawk Box" with a prediction that oil would rise to a lofty $69 to $72 per barrel — a leap above the then nonconsensus call of $60 he made on the program in January.